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Reliability assessment and life prediction for very few failure data
Author(s):
FU Hui-min
,
YUE Xiao-rui
,
ZHANG Yong-bo
Pages:
1855
-
1859
Year:
2010
Issue:
8
Journal:
Journal of Aerospace Power
Keyword:
寿命试验
;
Weibull 分布
;
极少失效数据
;
整体推断
;
可靠性评估
;
寿命预测
;
Abstract:
针对高可靠性产品寿命试验中经常出现只有极少失效数据的情况,提出一种可靠性评估和寿命预测方法.在Weibull分布形状参数下限已知的情况下,给出使用寿命和可靠度的单侧置信下限,该方法具有能将所有失效数据和未失效寿命数据进行累加的优点.文中还建立不同状态之间不完全数据的损伤等效折算公式,实现不同状态之间不完全数据的整体推断,增大了信息量,提高了预测精度.本文方法易于计算,便于工程应用.
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